Added docker

Dockerfile

@@ -0,0 +1,12 @@
+FROM debian:stable-slim AS build
+RUN apt-get update -y && apt-get upgrade -y && apt-get install -y libgnutls28-dev libgnutls30 gcc make pkg-config
+COPY . /swebs
+WORKDIR /swebs
+RUN make
+
+FROM debian:stable-slim AS run
+RUN apt-get update -y && apt-get upgrade -y && apt-get install -y libgnutls28-dev libgnutls30
+COPY --from=build /swebs/build/swebs /usr/sbin/swebs
+COPY ./site /site
+
+ENTRYPOINT [ "swebs", "-s", "/site/sitefile" ]